<script>
    var main, receiver, filter
    var _codeQueryTag = false
    export default {
        data() {
            return {
                scanCode: '',
            }
        },
        created: function (option) {
            this.initScan()
            this.startScan()
        },
        onHide: function () {
            this.stopScan()
        },
        destroyed: function () {
            /*页面退出时一定要卸载监听,否则下次进来时会重复，造成扫一次出2个以上的结果*/
            this.stopScan()
        },
        methods: {
            initScan() {
                let _this = this
                main = plus.android.runtimeMainActivity() //获取activity
                const IntentFilter = plus.android.importClass('android.content.IntentFilter')
                filter = new IntentFilter()
                filter.addAction('com.conti.ACTION') // 换你的广播动作
                receiver = plus.android.implements('io.dcloud.feature.internal.reflect.BroadcastReceiver', {
                    onReceive: function (context, intent) {
                        plus.android.importClass(intent)
                        let code = intent.getStringExtra('com.motorolasolutions.emdk.datawedge.data_string')
                        _this.queryCode(code)
                    },
                })
            },
            startScan() {
                main.registerReceiver(receiver, filter)
            },
            stopScan() {
                main.unregisterReceiver(receiver)
            },
            queryCode: function (code) {
                //防重复
                if (_codeQueryTag) return false
                _codeQueryTag = true
                setTimeout(function () {
                    _codeQueryTag = false
                }, 150)
                uni.$emit('scancodedate', { code })
            },
        },
    }
</script>
